Question Answers
Sahay Sir > Question Answers
The angular momentum of a body with mass (m) and moment of inertia (I) and angular velocity (w) rad/s is equal to
24
Aug
The angular momentum of a body with mass (m) and moment of inertia (I) and angular velocity (w) rad/s is equal to The angular momentum of a body with mass (m) and moment of inertia (I) and angular velocity (w) rad/s is equal to August 24, 2020 Category: Chapter 11 - Rotational Mechanics , NEET [...]
A solid spherical region, having a spherical cavity whose diameter ′ R ′ is equal to the radius of the spherical region, has a total charge ′ Q ′ . Find the electric field at a point P as shown.
24
Aug
A solid spherical region, having a spherical cavity whose diameter ′ R ′ is equal to the radius of the spherical region, has a total charge ′ Q ′ . Find the electric field at a point P as shown. A solid spherical region has a total charge ′ Q ′ . Find the electric [...]
An infinite dielectric sheet having charge density sigma has a holeof radius R in it. An electrom is released from point P on the axis of the hole at a distance sqrt(3)R from the center. Find the speed with which it crosses the plane of the sheet.
24
Aug
An infinite dielectric sheet having charge density sigma has a holeof radius R in it. An electrom is released from point P on the axis of the hole at a distance sqrt(3)R from the center. Find the speed with which it crosses the plane of the sheet. it was observed that the power radiated becames [...]
Tags:
it was observed that the power radiated becames `(256)/(81)P_0`. The shift in wavelength corresponding to the maximum energy will be ,
On changing the temperature of the black body ,
Power radiated by a black body is `P_0` and the wavelength corresponding to maximum energy is around `lamda_0` ,
Power radiated by a black body is `P_0` and the wavelength corresponding to maximum energy is around `lamda_0`, On changing the temperature of the black body, it was observed that the power radiated becames `(256)/(81)P_0`. The shift in wavelength corresponding to the maximum energy will be
24
Aug
Power radiated by a black body is `P_0` and the wavelength corresponding to maximum energy is around `lamda_0`, On changing the temperature of the black body, it was observed that the power radiated becames `(256)/(81)P_0`. The shift in wavelength corresponding to the maximum energy will be it was observed that the power radiated becames `(256)/(81)P_0`. [...]
Tags:
it was observed that the power radiated becames `(256)/(81)P_0`. The shift in wavelength corresponding to the maximum energy will be ,
On changing the temperature of the black body ,
Power radiated by a black body is `P_0` and the wavelength corresponding to maximum energy is around `lamda_0` ,
The moment of inertia of a disc of mass M and radius R about a tangent to its rim is
24
Aug
The moment of inertia of a disc of mass M and radius R about a tangent to its rim is The moment of inertia of a disc of mass M and radius R about a tangent to its rim is August 24, 2020 Category: Chapter 11 - Rotational Mechanics , NEET Last 32 Years Solved [...]
Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when the center of three balls are joined. The center of mass of system is located at the
24
Aug
Three identical metal balls each of radius r are placed touching each other on a horizontal surface such that an equilateral triangle is formed, when the center of three balls are joined. The center of mass of system is located at the Three identical metal balls each of radius r are placed touching each other [...]
A point source S of light is emitting a power P. A sphere of radius r is situated at a distance R from source S( r lt lt R), has a mass M and specific heat capacity C. The time in which temperature of sphere rises by theta^(@)C is
24
Aug
A point source S of light is emitting a power P. A sphere of radius r is situated at a distance R from source S( r lt lt R), has a mass M and specific heat capacity C. The time in which temperature of sphere rises by theta^(@)C is A point source S of light [...]
ABC is a right angled triangular plate of uniform thickness. The sides are such that ABBC as shown in figure. I1 , I2 , I3 are moments of inertia about AB, BC and AC respectively. Then which of the following relations is correct?
24
Aug
ABC is a right angled triangular plate of uniform thickness. The sides are such that ABBC as shown in figure. I1 , I2 , I3 are moments of inertia about AB, BC and AC respectively. Then which of the following relations is correct? ABC is a right angled triangular plate of uniform thickness. The sides [...]
A circular disc is to be made by using iron and aluminium. To keep its moment of inertia maximum about a geometrical axis, it should be prepared that
24
Aug
A circular disc is to be made by using iron and aluminium. To keep its moment of inertia maximum about a geometrical axis, it should be prepared that A circular disc is to be made by using iron and aluminium. To keep its moment of inertia maximum about a geometrical axis it should be prepared [...]
Three rods AB, BC and BD of same length l and cross section A are arranged as shown. The end D is immersed in ice whose mass is 440 g and is at `0^@C`. The end C is maintained at `100^@C`. Heat is supplied at constant rate of 200 cal/s. Thermal conductivities of AB, BC and BD are K, 2K and `K//2`, respectively Time after which whole ice will melt is (`K=100 cal//m-s^@C A=10cm^2,l=1cm`)
24
Aug
Three rods AB, BC and BD of same length l and cross section A are arranged as shown. The end D is immersed in ice whose mass is 440 g and is at `0^@C`. The end C is maintained at `100^@C`. Heat is supplied at constant rate of 200 cal/s. Thermal conductivities of AB, BC [...]